There is an element of window-dressing and deception that goes into a CV, which we all use to our advantage. How many of us have omitted from our CVs a failed GCSE, or a year spent retaking a failed exam, or worse?
A database would record your every success and every failure. It would enable employers to write off job applicants automatically who have experienced some minor check such as an exam failure.
I can see marginal benefits for big business in the use of such a database, but I am worried about those who are then so easily excluded from the chance to present their best features and make a success for themselves in employment.